Add tests

src/Makefile

@@ -16,7 +16,7 @@ endif
 
 TARGET = drow-engine
 HEADERS = err.h common.h print.h filereader.h gl_draw.h vector.h half_edge.h
-OBJECTS = main.o print.o filereader.o gl_draw.o vector.o half_edge.o
+OBJECTS = print.o filereader.o gl_draw.o vector.o half_edge.o
 INCS = -I.
 
 CFLAGS += $(shell $(PKG_CONFIG) --cflags gl glu glib-2.0)
@@ -37,8 +37,16 @@ INSTALL_LIBDIR = $(PREFIX)/$(LIBDIR)
 
 all: $(TARGET)
 
-$(TARGET): $(HEADERS) $(OBJECTS)
-	$(CC) $(CFLAGS) $(CPPFLAGS) $(INCS) -o ../$(TARGET) $(OBJECTS) $(LDFLAGS) $(LIBS)
+drow-engine.a: $(OBJECTS)
+	$(AR) rcu $@ $^
+
+test: drow-engine.a
+	$(MAKE) -C test
+
+$(TARGET): $(HEADERS) drow-engine.a main.o
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(INCS) \
+		-o ../$(TARGET) \
+		main.o drow-engine.a $(LDFLAGS) $(LIBS)
 
 install: $(TARGET)
 	$(INSTALL_DIR) "$(DESTDIR)$(INSTALL_BINDIR)"
@@ -48,7 +56,8 @@ uninstall:
 	rm "$(DESTDIR)$(INSTALL_BINDIR)/$(TARGET)"
 
 clean:
-	rm -f *.o $(TARGET) core vgcore*
+	$(MAKE) -C test clean
+	rm -f *.o drow-engine.a $(TARGET) core vgcore*
 
 
-.PHONY: all clean install uninstall
+.PHONY: all clean install test uninstall